Fast and Reliable
National Techincal Services’s positive material identification (PMI) provides alloy chemistry and grade ID information in seconds using a hand-held scanner.
PMI is also commonly used to ensure:
- the composition of the parent material is correct
- the correct filler material was used during equipment repair.
With PMI there is:
- no transporting material
- no altering material
- no damaging material.
Using hand-held scanners means we can:
- minimize costs associated with extensive lab analyses, especially when high volumes of testing are required
- conduct on-location testing for materials that are difficult to transport to the lab
- facilitate material testing at the manufacturing point
- assign a quality and production pass/fail status immediately or make required adjustments
- trouble-shoot potential problems before failures occur.
Versatile and Comprehensive
Our scanners can be used to inspect virtually any equipment, including :
- finished welds and weld beads
- bolts, rivets, and other fasteners
- valves and flanges
- complete reaction vessels.
They are engineered for in-service inspection of systems with temperatures in excess of 800°F (426°C).
A Variety of Scanners
National Techincal Services has a variety of scanners available for use, including:
- Niton™ XL2 XRF Analyzer—for standard optical PMI
- Oxford Instruments™ PMI Master Arc Probe—ideal determining a material’s carbon content.
National Techincal Services uses scanners with an extensive library of alloy grades. Families of alloys that can be accurately identified and analyzed include:
- stainless steels
- Cr-Mo steels including, vanadium and tungsten stabilized versions
- low alloy steel
- tool steels
- nickel, copper, titanium, and aluminum alloys
- exotics, such as zirconium and tantalum alloys.